Well structured WBBSE Class 9 Life Science MCQ Questions Chapter 3.1D Movement of Water, Minerals, Food and Gases can serve as a valuable review tool before exams.
Movement of Water, Minerals, Food and Gases Class 9 WBBSE MCQ Questions
Multiple Choice Questions :
Question 1.
Rate of diffusion increases with the-
(A) Increase in temperature of the medium
(B) Increase in viscosity of the medium
(C) Decrease in relative difference in concentration of two media
(D) All of these
Answer:
(A) Increase in temperature of the medium
Question 2.
Which type of transport never needs any carrier?
(A) Simple diffusion
(B) Osmosis
(C) Both (A) and (B)
(D) Ion absorption
Answer:
(C) Both (A) and (B)
Question 3.
In diffusion of molecules, the main driving force is the-
(A) Electrical gradient
(B) Concentration gradient
(C) Both (A) and (B)
(D) None of these
Answer:
(C) Both (A) and (B)
Question 4.
O2 is absorbed in the living cells by-
(A) Diffusion
(B) Osmosis
(C) Active absorption
(D) None of these
Answer:
(A) Diffusion
Question 5.
The main cause of diffusion pressure is-
(A) Size of diffusible molecules
(B) Velocity of the diffusible molecules
(C) Weight of the diffusible molecules
(D) Viscosity of the medium
Answer:
(B) Velocity of the diffusible molecules
Question 6.
The phloem element which helps in the transport of food material, is-
(A) Sieve tube
(B) Companion cells
(C) Both (A) and (B)
(D) None of these
Answer:
(C) Both (A) and (B)
Question 7.
Increase in size of diffusible molecules results into-
(A) Slower rate of diffusion
(B) Faster rate of diffusion
(C) No change in diffusion rate
(D) Stoppage of diffusion
Answer:
(A) Slower rate of diffusion
Question 8.
Increase in viscosity of medium-
(A) Has no role in diffusion
(B) Has negative role in diffusion rate
(C) Has positive role in diffusion rate
(D) Stops diffusion completely
Answer:
(B) Has negative role in diffusion rate
Question 9.
If a living cell is placed in a hypertonic solution, the protoplasm-
(A) Shrinks
(B) Swells
(C) Remains as it is
(D) Gets dissolved in the solution
Answer:
(A) Shrinks
Question 10.
In active transport, sodium and potassium ions-
(A) Jointly enter into a cell through cell membrane
(B) Move against each other through cell membrane
(C) Never enter in a cell through cell membrane
(D) Sodium ion enters but potassium ion does not enter in a cell
Answer:
(B) Move against each other through cell membrane
Question 11.
During deplasmolysis-
(A) A cell with shrunken protoplasm swells
(B) Protoplasm shrinks
(C) Cell membrane swells
(D) Cell membrane shrinks
Answer:
(A) A cell with shrunken protoplasm swells
Question 12.
Select the correct statement.
(A) Diffusion is possible only in liquid medium.
(B) Osmosis occurs through a permeable membrane.
(C) Semi-permeable membrane allows solvent molecules to pass through it.
(D) All cell membranes are semi-permeable in nature.
Answer:
(C) Semi-permeable membrane allows solvent molecules to pass through it.
Question 13.
In active transport, ATP-
(A) Carries the ions with it
(B) Pushes the ions through the membrane
(C) Binds to the carrier protein
(D) Provides physical energy
Answer:
(C) Binds to the carrier protein
Question 14.
The transport of molecules with the help of a carrier protein but without any role of ATP through a cell membrane, is called-
(A) Facilitated diffusion
(B) Diffusion
(C) Passive transport
(D) Active transport
Answer:
(A) Facilitated diffusion
Question 15.
It a flower is cut and immersed in dilute Nacl solution, then-
(A) Exosmosis occurs
(B) Endosmosis occurs
(C) Absorption of solutes inside the cells of flower occurs
(D) None of these
Answer:
(B) Endosmosis occurs
Fill in the blanks :
- _____ does not need any metabolic energy for transportation.
- In osmosis, the molecules of _____ move from a region of low concentration to a region of high concentration.
- Diffusion occurs due to difference in ____ of the two media.
- The physiological process for which a semi-permeable membrane is required, is called ____.
- The process which helps herbs to stand erect on the ground, is ____.
- The pressure flow hypothesis was given by scientist ______.
- The cell membrane of a living cell is usually a kind of _____ permeable membrane.
- The passage of water from one cell to the next is called _____ osmosis.
Answer:
- Water
- Solvent
- Density
- Osmosis
- Osmosis
- Munch
- Selectively
- Intercellular
State true or false :
- ‘Root Pressure Theory’ was proposed by Curtis.
- Transpiration pull helps in the ascent of sap.
- A cell shrinks when placed in hypotonic solution.
- Air bladder of fish is an example of a semipermeable membrane.
- Symport and antiport are types of coupled transport.
- Only downward transport of food materials takes place in phloem.
- Tif Swelling of the protoplasm of a flaccid cell by endosmosis is called deplasmolysis.
- Call wall is a selectively premeable membrare.
Answer:
- False
- True
- False
- True
- True
- False
- True
- False
Match the columns :
Question 1.
| Left column | Right column |
| 1. Active transport | A. Diffusion |
| 2. Ascent of sap | B. Shrinking of protoplasm |
| 3. Passive transport | C. Upward transport through xylem |
| 4. Plasmolysis | D. ATP consumption |
| E. Photolysis |
Answer:
| Left column | Right column |
| 1. Active transport | D. ATP consumption |
| 2. Ascent of sap | C. Upward transport through xylem |
| 3. Passive transport | A. Diffusion |
| 4. Plasmolysis | B. Shrinking of protoplasm |
Question 2.
| Left column | Right column |
| 1. Endosmosis | A. Hypertonic solution |
| 2. Symport | B. Hypotonic solution |
| 3. Exosmosis | C. Transport towards same direction |
| 4. Transpiration pull | D. Transport towards opposite directions |
| E. Root pressure |
Answer:
| Left column | Right column |
| 1. Endosmosis | B. Hypotonic solution |
| 2. Symport | C. Transport towards same direction |
| 3. Exosmosis | A. Hypertonic solution |
| 4. Transpiration pull | E. Root pressure |